Measure the distance along each side of the oven - from the top to bottom edge of the cabinet cutout. Note the measurements on the reference sheet. If you can, measure depth of the cabinet cutout from the front edge to the back wall.
Antidisestablishmentarianism is a splendid example of a word that people enjoy for some reason other than its ostensibly intended use; they like it because it is a very long word. Merriam-Webster does not define the word, on the grounds that very few people (if any) ever use it, except as an example of a long word.
Albigensianism, Catharism(noun) a Christian movement considered to be a medieval descendant of Manichaeism in southern France in the 12th and 13th centuries; characterized by dualism (asserted the coexistence of two mutually opposed principles, one good and one evil); was exterminated for heresy during the Inquisition.